Uptake and Speciation of Vanadium in the Benthic Invertebrate Hyalella azteca
| Autor: | D. George Dixon, Mitra Brown, Madeleine Jensen-Fontaine, Warren P. Norwood, X. Chris Le |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
media_common.quotation_subject
Vanadium chemistry.chemical_element Fresh Water Food supply Botany Animals Environmental Chemistry Amphipoda Oil and Gas Fields Tissue Distribution media_common Invertebrate biology Hyalella azteca Biota General Chemistry biology.organism_classification Azteca Speciation Petroleum chemistry Benthic zone Environmental chemistry Water Pollutants Chemical |
| Zdroj: | Environmental Science & Technology. 48:731-738 |
| ISSN: | 1520-5851 0013-936X |
| DOI: | 10.1021/es403252k |
| Popis: | Vanadium has the potential to leach into the environment from petroleum coke, an oil sands byproduct. To determine uptake of vanadium species in the biota, we exposed the benthic invertebrate Hyalella azteca with increasing concentrations of two different vanadium species, V(IV) and V(V), for seven days. The concentrations of vanadium in the H. azteca tissue increased with the concentration of vanadium in the exposure water. Speciation analysis revealed that V(IV) in the exposure water was oxidized to V(V) between renewal periods, and therefore the animals were mostly exposed to V(V). Speciation analysis of the H. azteca tissue showed the presence of V(V), V(IV), and an unidentified vanadium species. These results indicate the uptake and metabolism of vanadium by H. azteca. Because H. azteca are widely distributed in freshwater systems and are an important food supply for many fish, determining the uptake and metabolism of vanadium allows for a better understanding of the potential environmental effects on invertebrates. |
| Databáze: | OpenAIRE |
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